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ISO Adjustment Calculator

Formula

The formula to calculate the ISO Adjustment (IA) is:

$IA = \frac{ISO \times EV}{SS \times AP}$

Where:

$IA$ is the ISO Adjustment
$ISO$ is the camera's ISO setting
$EV$ is the Exposure Value
$SS$ is the Shutter Speed
$AP$ is the Aperture

Definitions

ISO Adjustment: A camera setting that controls the sensitivity of the camera’s sensor to light. Increasing the ISO number makes the sensor more sensitive to light, allowing for brighter images in low-light conditions.

Example

Let's say the camera's ISO setting is 400, the Exposure Value (EV) is 2, the Shutter Speed (SS) is 1/60, and the Aperture (AP) is 5.6. Using the formula:

$IA = \frac{400 \times 2}{\frac{1}{60} \times 5.6}$

We get:

$IA \approx 8571.43$

So, the ISO Adjustment is approximately 8571.43.